\( 6 y+2<-4 \) and \( -4(2 y+3)<-68 \) Solution Interval Notation
Solución de tutoría real
Responder
Solución
Revisado y aprobado por el equipo de tutoría de UpStudy
Mind Expander
To solve the first inequality \( 6y + 2 < -4 \), subtract 2 from both sides to get \( 6y < -6 \). Dividing by 6, we find \( y < -1 \). For the second inequality \( -4(2y + 3) < -68 \), start by distributing: \( -8y - 12 < -68 \). Adding 12 to both sides yields \( -8y < -56 \). Dividing by -8 (and flipping the inequality) gives \( y > 7 \). Now, combining both results, we have the solution \( y < -1 \) and \( y > 7 \). In interval notation, this is expressed as \( (-\infty, -1) \cup (7, \infty) \). Also, fun fact: negative numbers often bring surprise when solving inequalities—don’t forget to flip the inequality sign when multiplying or dividing by them! And remember, when dealing with intervals, using open vs. closed brackets correctly is key to showing whether endpoints are included!